Polishing device for machining inner wall of pressure container

Abstract

The utility model discloses a polishing device for machining the inner wall of a pressure vessel, and belongs to the technical field of pressure vessel machining. A rotating table is rotationally connected to the rack, and a pressure container is clamped on the rotating table; positioning assemblies are connected to the left side and the right side of the pressure container; the rack is connected with an adjustable grinding assembly. The adjustable polishing assembly is connected with the pressure container; the adjustable grinding assembly comprises a self-locking motor, a fixing sleeve, a threaded rod, a fixing disc, a pull rod and a grinding assembly body. The left end and the right end of the pressure container are limited and fixed through the positioning assembly, the pressure container is prevented from deviating in the grinding process, a self-locking motor is started, the output end of the self-locking motor drives a threaded rod to rotate, and the threaded rod drives the grinding assembly to move up and down along the threaded rod; and meanwhile, the grinding assemblies are pulled in the direction close to or far away from each other through the pull rods in cooperation with the fixing disc, and therefore the device adapts to pressure containers of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure vessel processing, in particular to a grinding device for processing inner walls of pressure vessels. Background Art

[0002] During the production process of pressure vessels, the inner surface of the pressure vessels needs to be treated with anti-corrosion treatment, and the inner surface of the pressure vessels needs to be polished before the anti-corrosion treatment.

[0003] For example, Chinese patent CN217966435U proposes a grinding device for processing the inner wall of a pressure vessel, including a support rod, a base plate, a clamping assembly, a load frame, a lifting cylinder, a lifting plate, a rotating motor, a rotating rod and a grinding block, wherein the support rod is symmetrically arranged under the base plate, the load frame is arranged on the top of the base plate, the clamping assembly is arranged on the top of the base plate and under the load frame, the lifting hydraulic press is arranged under the inner upper wall of the load frame, the lifting plate is arranged under the lifting cylinder, the rotating motor is arranged under the lifting plate, the rotating rod is arranged under the rotating motor, and the grinding block is symmetrically arranged at the lower end of the side of the rotating rod.

[0004] However, when the size of the barrel is changed, the grinding device of the above patent cannot be applied to pressure vessels of other sizes, and the application range is relatively narrow.

[0005] Based on this, the utility model designs a grinding device for processing the inner wall of a pressure vessel to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a grinding device for processing the inner wall of a pressure vessel.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A grinding device for processing the inner wall of a pressure vessel, comprising a frame;

[0009] The frame is rotatably connected to a rotating table, and a pressure vessel is clamped on the rotating table;

[0010] The left and right sides of the pressure vessel are both connected with positioning components for positioning the pressure vessel;

[0011] The positioning assembly is connected to the frame;

[0012] The frame is connected with an adjustable grinding assembly for grinding pressure vessels with different inner diameters;

[0013] The adjustable grinding assembly is connected to the pressure vessel;

[0014] The adjustable grinding assembly includes a self-locking motor, a fixed sleeve, a threaded rod, a fixed disc, a pull rod and a grinding assembly. The upper end of the frame is fixedly connected to the self-locking motor and the fixed sleeve, the output end of the self-locking motor passes through the interior of the fixed sleeve and is rotatably connected to the fixed sleeve, the bottom of the fixed sleeve is fixedly connected to the fixed disc, the output end of the self-locking motor is fixedly connected to the threaded rod, the grinding assembly is connected to the threaded rod, and a pull rod is rotatably connected between the fixed disc and the grinding assembly.

[0015] Furthermore, the positioning assembly includes a support frame, a cylinder, a fixed rod and an elastic assembly. The frame is fixedly connected to a left-right symmetrical support frame, the support frames are respectively fixedly connected to the cylinders, the output ends of the cylinders are fixedly connected to the fixed rods, and the fixed rods are fixedly connected to the elastic assembly.

[0016] Furthermore, the elastic component is in contact with and connected to a side wall of the pressure vessel.

[0017] Furthermore, the grinding assembly includes an arc-shaped grinding block, a dust suction hole, a fixing ring and a connecting rod. The lower end of the threaded rod is threadedly connected to the fixing ring. The outer side of the fixing ring is rotatably connected to multiple groups of connecting rods at equal intervals through a rotating shaft. The lower ends of the connecting rods are rotatably connected to the arc-shaped grinding block through a rotating shaft.

[0018] Furthermore, the lower end of the pull rod is rotatably connected to the connecting rod.

[0019] Furthermore, the arc-shaped grinding block is in contact with and connected to the inner wall of the pressure vessel.

[0020] Furthermore, the arc-shaped grinding block is provided with a plurality of dust suction holes at equal intervals, and the dust suction holes are connected to an external air suction duct.

[0021] Furthermore, the bottom of the threaded rod is fixedly connected to a limiting block.

[0022] The utility model has the following technical effects:

[0023] 1. The utility model clamps the pressure vessel on the rotating table, and limits and fixes the left and right ends of the pressure vessel through the positioning assembly to prevent the pressure vessel from shifting during the grinding process, and starts the self-locking motor. The output end of the self-locking motor drives the threaded rod to rotate, and the threaded rod drives the grinding assembly to move up and down along the threaded rod. At the same time, the fixed disc cooperates with the grinding assembly to pull the grinding assembly in the direction of approaching or moving away from each other through the pull rod, so as to adapt to pressure vessels of different sizes, so as to expand the application range of the device, save costs, and improve production efficiency; the rotating table drives the pressure vessel to rotate, so that the pressure vessel is polished through the grinding assembly.

[0024] 2. The utility model clamps the pressure vessel on the rotating table, starts the cylinder, and the output end of the cylinder drives the fixed rod and the elastic component to move towards each other. The elastic restoring force of the elastic component can prevent the pressure vessel from swinging and deviating during the processing, and has a buffering effect, thereby reducing the mechanical damage of the cylinder.

[0025] 3. When the self-locking motor of the utility model is started, the output end of the self-locking motor drives the threaded rod to rotate, and the threaded rod drives the fixing ring to move up and down along the threaded rod, and at the same time cooperates with the fixing disc to pull the connecting rod in the direction of approaching or moving away from each other through the pull rod, and the connecting rod pulls the arc-shaped grinding blocks in the direction of approaching or moving away from each other, thereby adapting to pressure vessels of different sizes, so as to expand the application scope of the device, save costs, and improve production efficiency; the dust suction hole sucks the debris generated during the grinding process into the external suction duct, thereby reducing air pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A three-dimensional diagram of a grinding device for processing the inner wall of a pressure vessel;

[0028] Figure 2 It is a front view of a grinding device for processing the inner wall of a pressure vessel;

[0029] Figure 3 It is a schematic diagram of the structure of the adjustable grinding assembly;

[0030] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0031] The numbers in the figure represent:

[0032] 1. Frame; 2. Pressure vessel; 3. Positioning assembly; 31. Support frame; 32. Cylinder; 33. Fixed rod; 34. Elastic assembly; 4. Adjustable grinding assembly; 41. Self-locking motor; 42. Fixed sleeve; 43. Threaded rod; 44. Fixed disc; 45. Pull rod; 46. Grinding assembly; 461. Arc grinding block; 462. Dust suction hole; 463. Fixed ring; 464. Connecting rod. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] The utility model is further described below in conjunction with embodiments.

[0035] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0036] Example 1

[0037] Please refer to the instruction manual Figure 1-4 , a grinding device for processing the inner wall of a pressure vessel, comprising a frame 1;

[0038] The frame 1 is rotatably connected to a rotating table, and a pressure vessel 2 is clamped on the rotating table;

[0039] The left and right sides of the pressure vessel 2 are both connected with positioning components 3 for positioning the pressure vessel 2;

[0040] The positioning assembly 3 is connected to the frame 1;

[0041] The frame 1 is connected with an adjustable grinding assembly 4 for grinding pressure vessels 2 with different inner diameters;

[0042] The adjustable grinding assembly 4 is connected to the pressure vessel 2;

[0043] The adjustable grinding assembly 4 includes a self-locking motor 41, a fixed sleeve 42, a threaded rod 43, a fixed disc 44, a pull rod 45 and a grinding assembly 46. The upper end of the frame 1 is fixedly connected with the self-locking motor 41 and the fixed sleeve 42. The output end of the self-locking motor 41 passes through the fixed sleeve 42 and is rotatably connected to the fixed sleeve 42. The bottom of the fixed sleeve 42 is fixedly connected with a fixed disc 44. The output end of the self-locking motor 41 is fixedly connected with the threaded rod 43. The grinding assembly 46 is connected to the threaded rod 43. The pull rod 45 is rotatably connected between the fixed disc 44 and the grinding assembly 46.

[0044] The pressure vessel 2 is clamped on the rotating table, and the positioning component 3 is started. The left and right ends of the pressure vessel 2 are limited and fixed by the positioning component 3 to prevent the pressure vessel 2 from shifting during the grinding process. The self-locking motor 41 is started, and the output end of the self-locking motor 41 drives the threaded rod 43 to rotate. The threaded rod 43 drives the grinding component 46 to move up and down along the threaded rod 43. At the same time, the fixed disc 44 is used to pull the grinding component 46 in the direction of approaching or moving away from each other through the pull rod 45, so as to adapt to pressure vessels 2 of different sizes, so as to expand the application range of the device, save costs, and improve production efficiency; the rotating table drives the pressure vessel 2 to rotate, so that the grinding of the pressure vessel 2 is realized through the grinding component 46;

[0045] The positioning assembly 3 includes a support frame 31, a cylinder 32, a fixed rod 33 and an elastic assembly 34. The frame 1 is fixedly connected to the left and right symmetrical support frames 31, the support frames 31 are respectively fixedly connected to the cylinders 32, the output ends of the cylinders 32 are fixedly connected to the fixed rods 33, and the fixed rods 33 are fixedly connected to the elastic assembly 34;

[0046] The elastic component 34 is in contact with and connected to the side wall of the pressure container 2;

[0047] The pressure vessel 2 is clamped on the rotating table, and the cylinder 32 is started. The output end of the cylinder 32 drives the fixing rod 33 and the elastic component 34 to move toward each other. The elastic restoring force of the elastic component 34 can prevent the pressure vessel 2 from swinging and deviating during the processing, and has a buffering effect, thereby reducing the mechanical damage of the cylinder 32.

[0048] The grinding assembly 46 includes an arc-shaped grinding block 461, a dust suction hole 462, a fixing ring 463 and a connecting rod 464. The lower end of the threaded rod 43 is threadedly connected to the fixing ring 463. The outer side of the fixing ring 463 is rotatably connected to multiple groups of connecting rods 464 at equal intervals through a rotating shaft. The lower ends of the connecting rods 464 are all rotatably connected to the arc-shaped grinding block 461 through a rotating shaft.

[0049] The lower end of the pull rod 45 is rotatably connected to the connecting rod 464;

[0050] The arc-shaped grinding block 461 is in contact with the inner wall of the pressure vessel 2;

[0051] The arc-shaped grinding block 461 is provided with a plurality of dust suction holes 462 at equal intervals, and the dust suction holes 462 are connected to an external air suction duct;

[0052] The bottom of the threaded rod 43 is fixedly connected to a limiting block;

[0053] The elastic component 34 is a spring;

[0054] When the self-locking motor 41 is started, the output end of the self-locking motor 41 drives the threaded rod 43 to rotate, and the threaded rod 43 drives the fixing ring 463 to move up and down along the threaded rod 43, and at the same time cooperates with the fixing disc 44 to pull the connecting rod 464 in the direction of approaching or moving away from each other through the pull rod 45, and the connecting rod 464 pulls the arc-shaped grinding block 461 in the direction of approaching or moving away from each other, thereby adapting to pressure vessels of different sizes, so as to expand the application range of the device, save costs, and improve production efficiency; the dust suction hole 462 sucks the debris generated during the grinding process into the external suction duct, thereby reducing air pollution;

[0055] Before grinding the pressure vessel 2, the rotating shaft at the connection between the fixing ring 463 and the connecting rod 464 is locked by bolts to prevent the arc-shaped grinding block 461 from deviating during grinding and affecting the grinding effect.

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A grinding device for processing the inner wall of a pressure vessel, comprising a frame (1), characterized in that: The frame (1) is rotatably connected to a rotating table, on which a pressure container (2) is clamped; The left and right sides of the pressure container (2) are both connected with positioning components (3) for positioning the pressure container (2); The positioning assembly (3) is connected to the frame (1); The frame (1) is connected to an adjustable grinding assembly (4) for grinding pressure vessels (2) with different inner diameters; The adjustable grinding assembly (4) is connected to the pressure container (2); The adjustable grinding assembly (4) comprises a self-locking motor (41), a fixed sleeve (42), a threaded rod (43), a fixed disc (44), a pull rod (45) and a grinding assembly (46); the upper end of the frame (1) is fixedly connected to the self-locking motor (41) and the fixed sleeve (42); the output end of the self-locking motor (41) passes through the interior of the fixed sleeve (42) and is rotatably connected to the fixed sleeve (42); the bottom of the fixed sleeve (42) is fixedly connected to the fixed disc (44); the output end of the self-locking motor (41) is fixedly connected to the threaded rod (43); the grinding assembly (46) is connected to the threaded rod (43); and the pull rod (45) is rotatably connected between the fixed disc (44) and the grinding assembly (46).

2. The grinding device for inner wall processing of a pressure vessel according to claim 1, characterized in that: The positioning assembly (3) comprises a support frame (31), a cylinder (32), a fixing rod (33) and an elastic assembly (34); the frame (1) is fixedly connected to a left-right symmetrical support frame (31); the support frames (31) are respectively fixedly connected to the cylinders (32); the output ends of the cylinders (32) are fixedly connected to the fixing rods (33); and the fixing rods (33) are fixedly connected to the elastic assembly (34).

3. The grinding device for inner wall processing of a pressure vessel according to claim 2, characterized in that: The elastic component (34) is in contact with the side wall of the pressure container (2).

4. The grinding device for inner wall processing of a pressure vessel according to claim 3, characterized in that: The grinding assembly (46) comprises an arc-shaped grinding block (461), a dust suction hole (462), a fixing ring (463) and a connecting rod (464); the lower end of the threaded rod (43) is threadedly connected to the fixing ring (463); the outer side of the fixing ring (463) is rotatably connected to multiple groups of connecting rods (464) at equal intervals via a rotating shaft; the lower ends of the connecting rods (464) are all rotatably connected to the arc-shaped grinding block (461) via a rotating shaft.

5. The grinding device for inner wall processing of a pressure vessel according to claim 4, characterized in that: The lower end of the pull rod (45) is rotatably connected to the connecting rod (464).

6. The grinding device for inner wall processing of a pressure vessel according to claim 5, characterized in that: The arc-shaped grinding block (461) is in contact with and connected to the inner wall of the pressure container (2).

7. The grinding device for inner wall processing of a pressure vessel according to claim 6, characterized in that: The arc-shaped grinding block (461) is provided with a plurality of groups of dust suction holes (462) at equal intervals, and the dust suction holes (462) are connected to an external air suction duct.

8. The grinding device for inner wall processing of a pressure vessel according to claim 7, characterized in that: The bottom of the threaded rod (43) is fixedly connected to a limiting block.

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